Fetch list from phone

CMakeLists.txt

@@ -9,6 +9,7 @@ INCLUDE_DIRECTORIES("build/${PEBBLE_FLAVOUR}/src")
 INCLUDE_DIRECTORIES("build/include")
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+add_definitions(-DCLION)
 
 set(SOURCE_FILES
         src/main.c

src/layers/border_layer.c

@@ -38,6 +38,9 @@ static void on_update(struct Layer *layer, GContext *context)
     };
     graphics_context_set_fill_color(context, border->color);
     graphics_fill_rect(context, rect, 0, GCornerNone);
+
+    graphics_context_set_fill_color(context, GColorBlack);
+    graphics_fill_circle(context, GPoint(7, 10), 2);
 }
 
 static struct Layer* create_raw_layer(struct BorderLayer *border,

src/main.c

@@ -19,13 +19,26 @@
 
 #include <pebble.h>
 #include "screens/list/list_window.h"
+#include "network.h"
+#include "util.h"
 
 int main(void)
 {
-    struct ListWindow *window = LIST_WINDOW_create();
+    int rval = 0;
+    struct ListWindow *window = 0;
+
+    rval = NETWORK_register();
+    abort_if(rval, "NETWORK_register failed");
+
+    window = LIST_WINDOW_create();
+    abort_if(!window, "LIST_WINDOW_create failed");
+
     window_stack_push(window->raw_window, true);
 
     app_event_loop();
 
+CLEANUP:
     LIST_WINDOW_destroy(window);
+    NETWORK_cleanup();
+    return rval;
 }

src/network.c

@@ -22,17 +22,38 @@
 #include "util.h"
 
 #define MAX_HABIT_COUNT 50
-static int HABIT_COUNT;
-static int HABIT_CURRENT;
 
-// LIST WINDOW
-//------------------------------------------------------------------------------
+struct NetworkState
+{
+    int habit_count;
+
+    int habit_current;
+
+    struct NetworkCallbacks *callbacks;
+};
+
+static int process_ok(struct NetworkState *state)
+{
+    int rval = 0;
+    abort_if(!state, "state is null");
+
+    struct NetworkCallbacks *callbacks = state->callbacks;
+    abort_if(!callbacks, "callbacks is null");
 
-static int request_next_habit()
+    if(!callbacks->on_ok) goto CLEANUP;
+    rval = callbacks->on_ok(callbacks->on_ok_context);
+    abort_if(rval, "state->on_ok failed");
+
+CLEANUP:
+    return rval;
+}
+
+static int request_next_habit(struct NetworkState *state)
 {
     int rval = 0;
+    abort_if(!state, "state is null");
 
-    if(HABIT_CURRENT >= HABIT_COUNT)
+    if(state->habit_current >= state->habit_count)
         goto CLEANUP;
 
     DictionaryIterator *dict;
@@ -42,71 +63,78 @@ static int request_next_habit()
     rval = dict_write_cstring(dict, 0, "FETCH");
     abort_if(rval, "dict_write_cstring failed");
 
-    rval = dict_write_int32(dict, 1, HABIT_CURRENT);
+    rval = dict_write_int32(dict, 1, state->habit_current);
     abort_if(rval, "dict_write_cstring failed");
 
     rval = app_message_outbox_send();
     abort_if(rval, "app_message_outbox_send failed");
 
-    HABIT_CURRENT++;
+    state->habit_current++;
 
 CLEANUP:
     return rval;
 }
 
-static int process_count(DictionaryIterator *iter)
+static int process_count(DictionaryIterator *iter, struct NetworkState *state)
 {
     int rval = 0;
+    abort_if(!state, "state is null");
+    struct NetworkCallbacks *callbacks = state->callbacks;
 
     Tuple *tuple = dict_find(iter, 1);
     abort_if(!tuple, "tuple is null");
 
     int count = tuple->value->int32;
 
-//    rval = LIST_WINDOW_allocate(count);
-//    abort_if(rval, "LIST_WINDOW_allocate failed");
+    if(callbacks->on_count)
+    {
+        rval = callbacks->on_count(count, callbacks->on_count_context);
+        abort_if(rval, "state->on_count failed");
+    }
 
     if(count > MAX_HABIT_COUNT) count = MAX_HABIT_COUNT;
-    HABIT_COUNT = count;
-    HABIT_CURRENT = 0;
+    state->habit_count = count;
+    state->habit_current = 0;
 
-    rval = request_next_habit();
+    rval = request_next_habit(state);
     abort_if(rval, "request_next_habit failed");
 
 CLEANUP:
     return rval;
 }
 
-static int process_habit(DictionaryIterator *iter)
+static int process_habit(DictionaryIterator *iter, struct NetworkState *state)
 {
     int rval = 0;
+    struct NetworkCallbacks *callbacks = state->callbacks;
 
-//    // id
-//    Tuple *tuple = dict_find(iter, 1);
-//    abort_if(!tuple, "tuple is null");
-//    int id = tuple->value->int32;
-//
-//    // name
-//    tuple = dict_find(iter, 2);
-//    abort_if(!tuple, "tuple is null");
-//    char *name = tuple->value->cstring;
-//
-//    // checkmark value
-//    tuple = dict_find(iter, 3);
-//    abort_if(!tuple, "tuple is null");
-//    int checkmark = tuple->value->int32;
-
-//    rval = LIST_WINDOW_add_habit(id, name, checkmark);
-//    abort_if(rval, "LIST_WINDOW_add_habit failed");
-
-    rval = request_next_habit();
+    Tuple *tuple = dict_find(iter, 1);
+    abort_if(!tuple, "tuple is null");
+    int id = tuple->value->int32;
+
+    tuple = dict_find(iter, 2);
+    abort_if(!tuple, "tuple is null");
+    char *name = tuple->value->cstring;
+
+    tuple = dict_find(iter, 3);
+    abort_if(!tuple, "tuple is null");
+    int checkmark = tuple->value->int32;
+
+    if(callbacks->on_habit)
+    {
+        void *ctx = callbacks->on_habit_context;
+        rval = callbacks->on_habit(id, name, checkmark, ctx);
+        abort_if(rval, "state->on_habit failed");
+
+        rval = request_next_habit(state);
         abort_if(rval, "request_next_habit failed");
+    }
 
 CLEANUP:
     return rval;
 }
 
-int NETWORK_request_list()
+int NETWORK_request_toggle(int id)
 {
     int rval = 0;
 
@@ -114,17 +142,22 @@ int NETWORK_request_list()
     rval = app_message_outbox_begin(&dict);
     abort_if(rval, "app_message_outbox_begin failed");
 
-    rval = dict_write_cstring(dict, 0, "COUNT");
+    rval = dict_write_cstring(dict, 0, "TOGGLE");
+    abort_if(rval, "dict_write_cstring failed");
+
+    rval = dict_write_int32(dict, 1, id);
     abort_if(rval, "dict_write_cstring failed");
 
     rval = app_message_outbox_send();
     abort_if(rval, "app_message_outbox_send failed");
 
+    log_debug("--> %s", "COUNT");
+
 CLEANUP:
     return rval;
 }
 
-int NETWORK_request_toggle(int id)
+int NETWORK_request_list()
 {
     int rval = 0;
 
@@ -132,53 +165,88 @@ int NETWORK_request_toggle(int id)
     rval = app_message_outbox_begin(&dict);
     abort_if(rval, "app_message_outbox_begin failed");
 
-    rval = dict_write_cstring(dict, 0, "TOGGLE");
-    abort_if(rval, "dict_write_cstring failed");
-
-    rval = dict_write_int32(dict, 1, id);
+    rval = dict_write_cstring(dict, 0, "COUNT");
     abort_if(rval, "dict_write_cstring failed");
 
     rval = app_message_outbox_send();
     abort_if(rval, "app_message_outbox_send failed");
 
+    log_debug("--> %s", "COUNT");
+
 CLEANUP:
     return rval;
 }
 
-//------------------------------------------------------------------------------
-
 static void NETWORK_on_received(DictionaryIterator *iter, void *context)
 {
     int rval = 0;
+    struct NetworkState *state = context;
+    abort_if(!state, "state is null");
 
     Tuple *tuple = dict_find(iter, 0);
     abort_if(!tuple, "tuple is null");
 
     char *action = tuple->value->cstring;
+    log_debug("<-- %s", action);
 
     if(strcmp(action, "COUNT") == 0)
     {
-        rval = process_count(iter);
+        rval = process_count(iter, state);
         abort_if(rval, "process_count failed");
     }
     else if(strcmp(action, "HABIT") == 0)
     {
-        rval = process_habit(iter);
+        rval = process_habit(iter, state);
         abort_if(rval, "process_habit failed");
     }
     else if(strcmp(action, "OK") == 0)
     {
-        rval = NETWORK_request_list();
-        abort_if(rval, "NETWORK_request_list failed");
+        rval = process_ok(state);
+        abort_if(rval, "process_ok failed");
     }
 
 CLEANUP:
     return;
 }
 
+struct NetworkCallbacks * NETWORK_get_callbacks()
+{
+    struct NetworkState *state = app_message_get_context();
+    return state->callbacks;
+}
+
 int NETWORK_register()
 {
+    int rval = 0;
+
+    struct NetworkState *state = 0;
+    state = (struct NetworkState*) malloc(sizeof(struct NetworkState));
+    abort_if(!state, "could not allocate state");
+
+    struct NetworkCallbacks *callbacks = 0;
+    callbacks = (struct NetworkCallbacks*) malloc(sizeof(struct NetworkCallbacks));
+    abort_if(!callbacks, "could not allocate callbacks");
+
+    state->callbacks = callbacks;
+    callbacks->on_ok = 0;
+    callbacks->on_habit = 0;
+    callbacks->on_count = 0;
+    callbacks->on_ok_context = 0;
+    callbacks->on_habit_context = 0;
+    callbacks->on_count_context = 0;
+
     app_message_register_inbox_received(NETWORK_on_received);
     app_message_open(1024, 1024);
-    return 0;
+    app_message_set_context(state);
+
+CLEANUP:
+    return rval;
+}
+
+void NETWORK_cleanup()
+{
+    struct NetworkState *state = app_message_get_context();
+    free(state->callbacks);
+    free(state);
+    app_message_deregister_callbacks();
 }

src/network.h

@@ -19,8 +19,30 @@
 
 #pragma once
 
-int NETWORK_register();
+struct NetworkCallbacks
+{
+    void *on_count_context;
+
+    void *on_habit_context;
+
+    void *on_ok_context;
+
+    int (*on_count)(int count, void *callback_context);
+
+    int (*on_habit)(int id,
+                    char *name,
+                    int checkmark,
+                    void *callback_context);
+
+    int (*on_ok)(void *callback_context);
+};
 
 int NETWORK_request_list();
 
 int NETWORK_request_toggle(int id);
+
+struct NetworkCallbacks* NETWORK_get_callbacks();
+
+int NETWORK_register();
+
+void NETWORK_cleanup();

src/screens/action/action_menu_layer.c

@@ -23,9 +23,12 @@
 
 const char *ACTIONS[] = {
         "    Check",
-        "   View stats"
+        "    More Info"
 };
 
+// MENU LAYER CALLBACKS
+// -----------------------------------------------------------------------------
+
 // callback: MenuLayerSelectCallback
 static void on_click(struct MenuLayer *menu_layer,
                      MenuIndex *cell_index,
@@ -62,6 +65,8 @@ static int16_t on_get_cell_height(struct MenuLayer *menu_layer,
     return CELL_HEIGHT;
 }
 
+// -----------------------------------------------------------------------------
+
 static void set_menu_layer_callbacks(struct ActionMenuLayer *action_menu,
                                      struct MenuLayer *menu)
 {

src/screens/action/action_menu_layer.h

@@ -21,13 +21,12 @@
 
 struct ActionMenuLayerCallbacks
 {
-    void (*on_select)(void *callback_context);
+    int (*on_select)(void *callback_context);
 };
 
 struct ActionMenuLayer
 {
     struct MenuLayer *menu_layer;
-
     void *callback_context;
     struct ActionMenuLayerCallbacks callbacks;
 };

src/screens/action/action_window.c

@@ -24,18 +24,47 @@
 #include "action_menu_layer.h"
 #include "style.h"
 #include "../animation/animation_window.h"
+#include "../../network.h"
 
-static void on_select(void *callback_context)
+#ifdef CLION
+#include <resource_ids.auto.h>
+#endif
+
+// NETWORK CALLBACKS
+// -----------------------------------------------------------------------------
+
+static int on_ok(void *callback_context)
 {
+    struct AnimationWindow *window = ANIMATION_WINDOW_create(
+            RESOURCE_ID_CONFIRM_SEQUENCE);
+
+    window_stack_push(window->raw_window, true);
+    return 0;
+}
+
+// ACTION MENU LAYER CALLBACKS
+// -----------------------------------------------------------------------------
+
+static int on_select(void *callback_context)
+{
+    int rval = 0;
+
     struct ActionWindow *window = callback_context;
 
-    ANIMATION_WINDOW_destroy(window->animation_window);
-    window->animation_window = ANIMATION_WINDOW_create(
-            RESOURCE_ID_CONFIRM_SEQUENCE);
+    rval = NETWORK_request_toggle(window->habit_id);
+    abort_if(rval, "NETWORK_request_toggle failed");
+
+    struct NetworkCallbacks *net_callbacks = NETWORK_get_callbacks();
+    abort_if(!net_callbacks, "NETWORK_get_callbacks failed");
+
+    net_callbacks->on_ok = on_ok;
 
-    window_stack_push(window->animation_window->raw_window, true);
+CLEANUP:
+    return rval;
 }
 
+// -----------------------------------------------------------------------------
+
 static int add_menu_layer(struct ActionWindow *window,
                           struct Layer *root_layer,
                           struct GRect bounds)
@@ -109,13 +138,15 @@ static void set_raw_window_handlers(Window *raw_window)
     window_set_window_handlers(raw_window, handlers);
 }
 
-struct ActionWindow *ACTION_WINDOW_create()
+struct ActionWindow *ACTION_WINDOW_create(int habit_id)
 {
     struct ActionWindow *window = 0;
 
     window = (struct ActionWindow*) malloc(sizeof(struct ActionWindow));
     if(!window) return NULL;
 
+    window->habit_id = habit_id;
+
     Window *raw_window = window_create();
     if(!raw_window) return NULL;
 

src/screens/action/action_window.h

@@ -21,6 +21,8 @@
 
 struct ActionWindow
 {
+    int habit_id;
+
     struct Window *raw_window;
 
     struct ActionMenuLayer *menu_layer;
@@ -30,6 +32,6 @@ struct ActionWindow
     struct AnimationWindow *animation_window;
 };
 
-struct ActionWindow* ACTION_WINDOW_create();
+struct ActionWindow* ACTION_WINDOW_create(int habit_id);
 
 void ACTION_WINDOW_destroy(struct ActionWindow *window);

src/screens/action/style.h

@@ -31,6 +31,6 @@
 
 #define BORDER_COLOR GColorFolly
 
-#define BORDER_WIDTH 6
+#define BORDER_WIDTH 14
 
 #define CELL_HEIGHT 36

src/screens/list/list_layer.c

@@ -23,22 +23,31 @@
 
 #define MAX_NAME_LENGTH 20
 
-static int free_habits(struct ListLayer *layer)
+int LIST_LAYER_clear(struct ListLayer *layer)
 {
+    int rval = 0;
+    abort_if(!layer, "layer is null");
+
     for(int i = 0; i < layer->habit_count; i++) free(layer->habit_names[i]);
     free(layer->habit_names);
     free(layer->habit_checkmarks);
     free(layer->habit_ids);
+
+    layer->habit_names = 0;
+    layer->habit_checkmarks = 0;
+    layer->habit_ids = 0;
     layer->habit_count = 0;
 
-    return 0;
+CLEANUP:
+    return rval;
 }
 
 int LIST_LAYER_allocate(struct ListLayer *layer, int count)
 {
     int rval = 0;
 
-    free_habits(layer);
+    rval = LIST_LAYER_clear(layer);
+    abort_if(rval, "LIST_LAYER_clear failed");
 
     layer->habit_names = (char **) malloc(count * sizeof(char *));
     abort_if(!layer->habit_names, "could not allocate habit_names");
@@ -64,8 +73,14 @@ int LIST_LAYER_add_habit(struct ListLayer *layer,
                          char *new_name,
                          int new_checkmark)
 {
-    uint16_t count = layer->habit_count;
+    int rval = 0;
+
+    abort_if(!layer, "layer is null");
+    abort_if(!layer->habit_ids, "layer->habit_ids is null");
+    abort_if(!layer->habit_names, "layer->habits_names is null");
+    abort_if(!layer->habit_checkmarks, "layer->habit_checkmarks is null");
 
+    uint16_t count = layer->habit_count;
     char *name = layer->habit_names[count];
     strncpy(name, new_name, MAX_NAME_LENGTH);
     menu_layer_reload_data(layer->menu_layer);
@@ -74,7 +89,8 @@ int LIST_LAYER_add_habit(struct ListLayer *layer,
     layer->habit_checkmarks[count] = new_checkmark;
     layer->habit_count++;
 
-    return 0;
+CLEANUP:
+    return rval;
 }
 
 static uint16_t get_num_rows(MenuLayer *menu_layer,
@@ -90,11 +106,20 @@ static void on_draw_row(GContext *ctx,
                         MenuIndex *cell_index,
                         void *callback_context)
 {
+    int rval = 0;
+    abort_if(!cell_index, "cell_index is null");
+
     int n = cell_index->row;
+
     struct ListLayer *list_layer = callback_context;
+    abort_if(!list_layer, "list_layer is null");
+
     char *name = list_layer->habit_names[n];
 
     menu_cell_basic_draw(ctx, cell_layer, name, NULL, NULL);
+
+CLEANUP:
+    if(rval) CRASH();
 }
 
 static int16_t get_cell_height(struct MenuLayer *menu_layer,
@@ -108,21 +133,23 @@ static void select_click(struct MenuLayer *menu_layer,
                          struct MenuIndex *index,
                          void *callback_context)
 {
+    int rval = 0;
+
     struct ListLayer *list_layer = callback_context;
-    if(!list_layer->callbacks.on_select) return;
+    abort_if(!list_layer, "list_layer is null");
 
-    list_layer->callbacks.on_select(list_layer->callback_context);
-}
+    struct ListLayerCallbacks *callbacks = &list_layer->callbacks;
+    abort_if(!callbacks, "callbacks is null");
 
-static void request_list(void *context)
-{
-    struct ListLayer *layer = context;
+    int n = index->row;
+    int habit_id = list_layer->habit_ids[n];
 
-    LIST_LAYER_allocate(layer, 4);
-    LIST_LAYER_add_habit(layer, 0, "Wake up early", 0);
-    LIST_LAYER_add_habit(layer, 1, "Meditate", 1);
-    LIST_LAYER_add_habit(layer, 2, "Exercise", 1);
-    LIST_LAYER_add_habit(layer, 3, "Go to school", 0);
+    if(!callbacks->on_select) return;
+    rval = callbacks->on_select(habit_id, callbacks->on_select_context);
+    abort_if(rval, "callbacks->on_select failed");
+
+CLEANUP:
+    if(rval) CRASH();
 }
 
 static void set_menu_layer_callbacks(struct ListLayer *list_layer,
@@ -149,7 +176,6 @@ static void set_menu_layer_styles(MenuLayer *menu_layer)
 void LIST_LAYER_attach_to_window(struct ListLayer *layer, struct Window *window)
 {
     menu_layer_set_click_config_onto_window(layer->menu_layer, window);
-    app_timer_register(500, request_list, layer);
 }
 
 void LIST_LAYER_add_to_layer(struct ListLayer *layer, struct Layer *root_layer)
@@ -178,7 +204,7 @@ struct ListLayer* LIST_LAYER_create(struct GRect bounds)
 void LIST_LAYER_destroy(struct ListLayer *list_layer)
 {
     if(!list_layer) return;
-    free_habits(list_layer);
+    LIST_LAYER_clear(list_layer);
     menu_layer_destroy(list_layer->menu_layer);
     free(list_layer);
 }

src/screens/list/list_layer.h

@@ -22,7 +22,9 @@
 
 struct ListLayerCallbacks
 {
-    void (*on_select)(void *callback_context);
+    void *on_select_context;
+
+    int (*on_select)(int habit_id, void *callback_context);
 };
 
 struct ListLayer
@@ -35,10 +37,16 @@ struct ListLayer
     struct MenuLayer *menu_layer;
     struct ActionWindow *action_window;
 
-    void *callback_context;
     struct ListLayerCallbacks callbacks;
 };
 
+int LIST_LAYER_add_habit(struct ListLayer *layer,
+                         int new_id,
+                         char *new_name,
+                         int new_checkmark);
+
+int LIST_LAYER_allocate(struct ListLayer *layer, int count);
+
 void LIST_LAYER_attach_to_window(struct ListLayer *layer, struct Window *window);
 
 void LIST_LAYER_add_to_layer(struct ListLayer *layer, struct Layer *root_layer);
@@ -46,3 +54,5 @@ void LIST_LAYER_add_to_layer(struct ListLayer *layer, struct Layer *root_layer);
 struct ListLayer* LIST_LAYER_create(struct GRect bounds);
 
 void LIST_LAYER_destroy(struct ListLayer *layer);
+
+int LIST_LAYER_clear(struct ListLayer *layer);

src/screens/list/list_window.c

@@ -21,15 +21,69 @@
 #include "list_window.h"
 #include "../action/action_window.h"
 #include "list_layer.h"
-#include "../animation/animation_window.h"
+#include "../../network.h"
+#include "../../util.h"
 
-static void on_select(void *callback_context)
+// NETWORK CALLBACKS
+// -----------------------------------------------------------------------------
+int on_habit(int id, char *name, int checkmark, void *callback_context)
 {
+    int rval = 0;
     struct ListWindow *window = callback_context;
-    LIST_WINDOW_show_action_window(window);
+
+    rval = LIST_LAYER_add_habit(window->list_layer, id, name, checkmark);
+    abort_if(rval, "LIST_LAYER_add_habit failed");
+
+CLEANUP:
+    return rval;
+}
+
+int on_count(int count, void *callback_context)
+{
+    int rval = 0;
+    struct ListWindow *window = callback_context;
+
+    rval = LIST_LAYER_allocate(window->list_layer, count);
+    abort_if(rval, "LIST_LAYER_allocate failed");
+
+CLEANUP:
+    return rval;
+}
+
+// BUTTON CALLBACKS
+// -----------------------------------------------------------------------------
+static int on_select(int habit_id, void *callback_context)
+{
+    int rval = 0;
+    struct ListWindow *window = callback_context;
+
+    ACTION_WINDOW_destroy(window->action_window);
+
+    window->action_window = ACTION_WINDOW_create(habit_id);
+    abort_if(!window->action_window, "ACTION_WINDOW_create failed");
+
+    window_stack_push(window->action_window->raw_window, true);
+
+CLEANUP:
+    return rval;
 }
 
-// callback: WindowHandler
+// TIMER CALLBACKS
+// -----------------------------------------------------------------------------
+static void request_list(void *callback_context)
+{
+    int rval = 0;
+
+    rval = NETWORK_request_list();
+    abort_if(rval, "NETWORK_request_list failed");
+
+CLEANUP:
+    if(rval) CRASH();
+}
+
+// WINDOW HANDLERS
+// -----------------------------------------------------------------------------
+
 static void on_load(Window *raw_window)
 {
     Layer *root_layer = window_get_root_layer(raw_window);
@@ -40,13 +94,12 @@ static void on_load(Window *raw_window)
     LIST_LAYER_attach_to_window(window->list_layer, raw_window);
     LIST_LAYER_add_to_layer(window->list_layer, root_layer);
 
-    window->list_layer->callback_context = window;
     window->list_layer->callbacks = (struct ListLayerCallbacks) {
-            .on_select = on_select
+            .on_select = on_select,
+            .on_select_context = window
     };
 }
 
-// callback: WindowHandler
 static void on_unload(Window *raw_window)
 {
     struct ListWindow *list_window = window_get_user_data(raw_window);
@@ -54,21 +107,48 @@ static void on_unload(Window *raw_window)
     ACTION_WINDOW_destroy(list_window->action_window);
 }
 
-void LIST_WINDOW_show_action_window(struct ListWindow *window)
+static void on_appear(Window *raw_window)
 {
-    ACTION_WINDOW_destroy(window->action_window);
+    int rval = 0;
+    struct ListWindow *window = window_get_user_data(raw_window);
 
-    window->action_window = ACTION_WINDOW_create();
-    if(!window->action_window) return;
+    LIST_LAYER_clear(window->list_layer);
 
-    window_stack_push(window->action_window->raw_window, true);
+    struct NetworkCallbacks *callbacks = NETWORK_get_callbacks();
+    abort_if(!callbacks, "NETWORK_get_callbacks failed");
+    callbacks->on_count = on_count;
+    callbacks->on_count_context = window;
+    callbacks->on_habit = on_habit;
+    callbacks->on_habit_context = window;
+
+    app_timer_register(500, request_list, window);
+
+CLEANUP:
+    if(rval) CRASH();
+}
+
+static void on_disappear(Window *raw_window)
+{
+    int rval = 0;
+
+    struct NetworkCallbacks *callbacks = NETWORK_get_callbacks();
+    abort_if(!callbacks, "NETWORK_get_callbacks failed");
+    callbacks->on_count = 0;
+    callbacks->on_habit = 0;
+
+CLEANUP:
+    if(rval) CRASH();
 }
 
+// -----------------------------------------------------------------------------
+
 struct ListWindow *LIST_WINDOW_create()
 {
     WindowHandlers handlers = {
         .load = on_load,
-        .unload = on_unload
+        .unload = on_unload,
+        .appear = on_appear,
+        .disappear = on_disappear,
     };
 
     struct ListWindow *list_window = 0;

src/screens/list/list_window.h

@@ -26,8 +26,6 @@ struct ListWindow
     struct ActionWindow *action_window;
 };
 
-void LIST_WINDOW_show_action_window(struct ListWindow *window);
-
 struct ListWindow *LIST_WINDOW_create();
 
 void LIST_WINDOW_destroy(struct ListWindow *window);

src/util.h

@@ -22,10 +22,18 @@
 #include <pebble.h>
 
 #define abort_if(cond, msg) if(cond) { \
-        APP_LOG(APP_LOG_LEVEL_ERROR, msg " (%d) (%s:%d)", rval, __FILE__, __LINE__); \
+        APP_LOG(APP_LOG_LEVEL_ERROR, msg " (%d)", rval); \
         rval = 1; goto CLEANUP; }
 
 #define abort_iff(cond, msg, ...) if(cond) { \
-        APP_LOG(APP_LOG_LEVEL_ERROR, msg " (%d) (%s:%d)", __VA_ARGS__, rval, __FILE__, \
-                    __LINE__); \
+        APP_LOG(APP_LOG_LEVEL_ERROR, msg " (%d)", __VA_ARGS__, rval); \
         rval = 1; goto CLEANUP; }
+
+#define log_debug(msg, ...) APP_LOG(APP_LOG_LEVEL_DEBUG, msg, __VA_ARGS__)
+
+static void CRASH()
+{
+    APP_LOG(APP_LOG_LEVEL_ERROR, "%s", "forcing crash");
+    int *x = NULL;
+    *x = 42;
+}